Email Extractor can query the global WHOIS database to retrieve detailed contact information for domains and their owners. This mode is useful for lead discovery, domain research, security investigations, and enrichment of contact lists.

What WHOIS mode returns

• Registrant contact: owner name, registrant email, organization.
• Administrative & technical contacts: admin and tech emails and phone numbers.
• Billing contacts: billing email and organization details where available.
• Domain data: domain name, registrar, creation/expiration dates, nameservers.
• IP / server info: where publicly available in WHOIS records.

How to run WHOIS extraction

1. Load domains — paste a single domain or click Load to import a list from a text file.
2. Configure options — choose timeout, parallel queries, and whether to include historical WHOIS (if supported).
3. Start — click Start Search to run WHOIS lookups for all domains in the list.
4. Review results — results populate the Results pane with separate columns for each data field.
5. Save — export the collected data using the Save wizard (TXT/CSV/LST or Excel formats).

Importing domains and bulk tips

• Use plain lists (one domain per line) for best results.
• Validate domain format before running (no extra paths or protocols).
• For very large lists, run in batches to avoid rate limits or throttling from WHOIS providers.
• Enable proxy support if you need to distribute requests across IPs for high-volume lookups.

Saving and export

Click Save to open the export wizard. The program can export all collected columns (registrant, admin, tech, billing, server info) into .txt, .csv, .lst, or .xlsx files. Choose a file name and location in the Save File dialog — export starts immediately.

Privacy, legal & usage notes

• WHOIS data is public information in many jurisdictions, but availability and fields vary by registrar, TLD and local privacy rules (WHOIS privacy / GDPR redaction).
• Respect privacy and legal restrictions when using collected contact data — follow GDPR, CAN-SPAM and local regulations when contacting people.
• Some WHOIS providers may limit query rates — respect rate limits and terms of service to avoid IP blocking.

Troubleshooting

• If lookups return minimal data, the domain may use WHOIS privacy or privacy-protect services — try alternative enrichment sources.
• For intermittent failures, increase the per-query timeout and lower parallel threads.
• If you see "rate limited" errors, reduce concurrency, add delays, or use proxy rotation.